Solarthermalworld - Arcon Solvarmehttps://www.solarthermalworld.org/taxonomy/term/28151
enDenmark: Dronninglund Inaugurates 26 MWth Solar District Heating Plant https://www.solarthermalworld.org/content/denmark-dronninglund-inaugurates-26-mwth-solar-district-heating-plant
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><div>
<img alt="Dronninglund1" class="Image img__fid__10391 img__view_mode__default attr__format__default attr__field_file_image_alt_text[und][0][value]__Dronninglund1 attr__field_file_image_title_text[und][0][value]__Dronninglund1" src="http://solarthermalworld.org/sites/gstec/files/dronninglund2_kl.jpg" title="Dronninglund1" typeof="Image" /><strong>The world’s currently largest <a href="http://solarthermalworld.org/content/denmark-construction-start-dronninglunds-solar-district-heating-plant">solar district heating plant</a> was inaugurated in Dronninglund, Denmark, on 2 May this year. The photo shows Carsten Møller Nielsen, Board Chairman at Dronninglund Fjernvarme, welcoming Rasmus Helveg Petersen, Danish Minister for Climate, Energy and Building (to the left of the speaker). The system consists of 2,982 collectors with a total solar thermal capacity of 26 MW<sub>th</sub> (37,573 m²) and a 61,700 m³ seasonal pit heat storage and is planned to provide about 15,000 MWh per year. Its output will meet half of the annual heat demand of the plant’s 1,350 customers. According to the local district heating supplier Dronninglund Fjernvarme, the total investment costs for the plant amounted to DKK 106 million (EUR 14.6 million), of which EUR 6.1 million were invested in the solar installation (see the chart below). The plant was subsidised by the Danish Energy Technology Development and Demonstration Program, EUDP, which supported the project with Danish Krone (DKK) 21 million (EUR 2.953 Mio). The payback period is said to be 25 years. Solarthermalworld.org spoke with Søren Elisiussen, CEO at Arcon Solar, which delivered the collectors and the support structure for the solar field, about the plant’s technical specifications.</strong></div>
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Photo: Arcon Solar<br />
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<img alt="investment costs" class="Image img__fid__10396 img__view_mode__default attr__format__default attr__field_file_image_alt_text[und][0][value]__investment costs attr__field_file_image_title_text[und][0][value]__investment" src="http://solarthermalworld.org/sites/gstec/files/invetkosten_dronninglund1_kl.png" title="investment costs" typeof="Image" /><strong>Source: Dronninglund Fjernvarme</strong></div>
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<strong><em>Solarthermalworld.org</em>: Danish project planner PlanEnergi calculated very low specific investment costs of <a href="http://solarthermalworld.org/content/denmark-construction-start-dronninglunds-solar-district-heating-plant">155 EUR/m²</a> for the solar installation in Dronninglund. Did you meet this goal? </strong></div>
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<strong>Elisiussen:</strong> To the best of my knowledge, Dronninglund completed the project on budget. The total project sum of DKK 106 million seems correct to me. We delivered the collector field, the support structure and the piping between collectors in the field. </div>
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<strong><em>Solarthermalworld.org</em>: At the SMEThermal conference in Berlin, Germany, in February this year, you mentioned that the <a href="http://solarthermalworld.org/content/denmark-we-have-improved-costperformance-ratio-around-50-over-last-5-year">typical investment costs</a> of a ground-mounted 10,000 m² collector field were 200 EUR/m². Compared to a 10,000 m² field, the 36,000 m² has been 30 % cheaper. How did you achieve the cost savings? </strong></div>
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<strong>Elisiussen:</strong> During the last years, Arcon has managed to optimise both the product and the production. This has resulted in significant improvements in both performance and costs. Add to this the size of the Dronninglund field, which provided additional synergies. One of the more important improvements was the new and innovative steel profile foundation. The Dronninglund project was originally intended to be installed on concrete pillars, moulded onsite, but Arcon developed the steel foundations and offered those on the Dronninglund project as a cost-saving initiative to the customer. Today, Arcon primarily installs collectors on steel profiles and we have acquired the necessary machinery and hired the right specialists to install them.<br />
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<img alt="Pit heat storage" class="Image img__fid__10401 img__view_mode__default attr__format__default attr__field_file_image_alt_text[und][0][value]__Pit heat storage attr__field_file_image_title_text[und][0][value]__Pit" src="http://solarthermalworld.org/sites/gstec/files/dronninglund_bad_415x100_jpg.ashx_.jpg" title="Pit heat storage" typeof="Image" /><strong>Pit heat storage measuring 91 x 91 meters</strong></div>
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Photo: Arcon Solar</div>
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<p> <strong><em>Solarthermalworld.org</em>: Please explain the hydraulic design of the collector arrays at 36,000 m². </strong></p></div>
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<strong>Elisiussen:</strong> It’s two collector fields with rows of 20 collectors in series. All collectors are Arcon 35/10 HEATstore collectors with insulating foil, 35 mm riser tubes and 10 mm strips.</div>
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<strong><em>Solarthermalworld.org</em>: What opportunities for optimisation do you see in this area?</strong></div>
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<strong>Elisiussen:</strong> We at Arcon are continuously working on further improving the cost-performance ratio of the collectors and the installation process. We are currently implementing changes to our production lines to optimise material use and production efficiency and to improve the collector’s physical properties. Regarding the complete solution, it has been my impression that the combination of high-performance flat plate collectors and seasonal storage is maturing now, based on past experiences. Arcon has just signed a contract last week to deliver a 52,491 m² collector field for an installation in Vojens, Denmark, with 180,000 m³ of seasonal storage. So, the solution, a large solar field with storage, is maturing and turning into a proven technology with minimal risk, which can be used all over Europe to reduce the dependency on fossil fuels and reduce long-term heat costs.</div>
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<strong><em>Solarthermalworld.org</em>: At SMEThermal, you mentioned that you use eight different collector types in larger fields to optimise hydraulics. Was this special design also used in Dronninglund?</strong></div>
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<strong>Elisiussen:</strong> Dronninglund has only one type of collector, the above-mentioned 35/10 HEATstore with foil, because of the rectangular field connected to seasonal storage. The other types are commonly used to optimise non-rectangular fields with rows of different lengths. We have already had several plants with this field combination. When designing a field layout, Arcon uses its years of experience with the different collector models to achieve an optimal cost-performance ratio. </div>
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<strong><em>Solarthermalworld.org</em>: What is your aim with the special design?</strong></div>
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<strong>Elisiussen:</strong> We aim at optimising flow and making sure we have turbulent flow all over the field at all times, as it improves overall performance.</div>
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<strong><em>Solarthermalworld.org</em>: What are the different technical features of the collector types?</strong></div>
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<strong>Elisiussen:</strong> There is a version with 10 mm strip dimensions and a version with 8 mm strip dimensions. Both versions come with and without foil. We have discontinued the 28 mm riser tube versions due to production optimisations, so all collectors now have 35 mm riser tubes. This enables us to design collector fields with long rows of collectors (up to 22 in a row) to best accommodate the requirements of the district heating station.</div>
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<strong><em>Solarthermalworld.org</em>: With regard to future projects, can you estimate how much the optimised hydraulics have improved efficiency?</strong></div>
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<strong>Elisiussen: </strong>We need more detailed calculations and measurements before we can precisely quantify the improvement. We are currently involved in a PhD project that aims at modelling the increase.<br />
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<img alt="Dronninglund2" class="Image img__fid__10406 img__view_mode__default attr__format__default attr__field_file_image_alt_text[und][0][value]__Dronninglund2 attr__field_file_image_title_text[und][0][value]__Dronninglund2" src="http://solarthermalworld.org/sites/gstec/files/solfangerfelt_kl.jpg" title="Dronninglund2" typeof="Image" /><div>
More information:</div>
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<a href="http://www.arcon.de">www.arcon.de</a></div>
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<a href="http://www.drlund-fjernvarme.dk/">http://www.drlund-fjernvarme.dk/</a></div>
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<a href="http://www.stateofgreen.com/en/Profiles/ARCON-Solar-Heat/Solutions/Seasonal-Thermal-Energy-Storage-–-A-Major-Breakthrough-for-Solar-Heating">www.stateofgreen.com/en/Profiles/ARCON-Solar-Heat/Solutions/Seasonal-The...</a></div>
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<strong>The interview was conducted by Stephanie Banse, a German journalist specialised in solar thermal technology. (banse(@)solrico.com)</strong></div>
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</div></div></div><div class="field field-name-field-news field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74751" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">News</a></div></div></div><div class="field field-name-field-files field-type-file field-label-hidden"><div class="field-items"><div class="field-item even"><span class="file"><img class="file-icon" alt="" title="application/pdf" src="/modules/file/icons/application-pdf.png" /> <a href="https://www.solarthermalworld.org/sites/default/files/news/file/2014-06-01/praesentation_3_08_johan_frey_english.pdf" type="application/pdf; length=3072920" data-fid="10416" target="_blank">praesentation_3_08_johan_frey_english.pdf</a> 3.1 Mb <span class="dlcount">[<span class="dlcount-number" id="dlcount-10416">345</span> download(s)]</span></span></div></div></div><div class="field field-name-field-market-sectors field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74641" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">District Heating</a></div><div class="field-item odd"><a href="/taxonomy/term/74651" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Heat Storage</a></div></div></div><div class="field field-name-field-country field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/44131" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Denmark</a></div></div></div><div class="field field-name-field-keyword field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/keyword/dronninglund" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Dronninglund</a></div><div class="field-item odd"><a href="/keyword/danish-energy-technology-development-and-demonstration-program" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Danish Energy Technology Development and Demonstration Program</a></div><div class="field-item even"><a href="/keyword/eudp" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">EUDP</a></div></div></div><div class="field field-name-field-companies field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/28151" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Arcon Solvarme</a></div><div class="field-item odd"><a href="/companies/dronninglund-fjernvarme" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Dronninglund Fjernvarme</a></div></div></div><span class="a2a_kit a2a_kit_size_32 a2a_target addtoany_list" id="da2a_1">
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</script>Sun, 01 Jun 2014 19:12:07 +0000Baerbel Epp63001 at https://www.solarthermalworld.orghttps://www.solarthermalworld.org/content/denmark-dronninglund-inaugurates-26-mwth-solar-district-heating-plant#commentsGermany/Denmark: Solar District Heating Prices between 37 and 88 EUR/MWh https://www.solarthermalworld.org/content/germanydenmark-solar-district-heating-prices-between-37-and-88-eurmwh
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><div><img alt="Solites Calculation" class="Image img__fid__9951 img__view_mode__default attr__format__default attr__field_file_image_alt_text[und][0][value]__Solites Calculation attr__field_file_image_title_text[und][0][value]__Solites" src="http://solarthermalworld.org/sites/gstec/files/solites_berechnungen.png" title="Solites Calculation" typeof="Image" /><strong>The calculation of solar heat prices very much depends on the frame conditions. The chart on the left shows heat prices for a solar district heating system, with costs differing between 37 and 88 EUR/MWh. The best-case scenario - with a 3 % low-interest loan and a 40 % investment subsidy – allows a heat price of 37 EUR/MWh, whereas the worst case without a subsidy and with an 8 % interest rate forces the heat price to levels as high as 88 EUR/MWh. The calculation, which uses the newly developed <a href="http://solarthermalworld.org/content/germany-solites-presents-online-calculator-solar-district-heating-systems">online tool by German research institute Solites</a>, is based on a 3,000 m² collector field and a 600 m³ storage tank. The tank feeds directly into a district heating network, which covers 9 % of the annual heat demand.</strong></div>
<div>Source: Solites</div>
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<div>According to <a href="http://solarthermalworld.org/content/denmark-we-have-improved-costperformance-ratio-around-50-over-last-5-years">Arcon</a>, the Danish specialist for turnkey solar district heating systems, municipalities which run and own district heating systems in Denmark profit from the 3 % low-interest rate on the investment over the system’s expected lifetime of at least 20 years. Solites, however, confirmed that an 8 % interest rate is a common figure for municipal utilities to refinance investments. The difference is enormous – a 57 % increase in the solar heat price. Only a 40 % investment subsidy could bring down the solar heat price to 57 EUR/MWh at 8 % interest.<br /> </div>
<div><br /><br /><table border="1" cellpadding="0" cellspacing="0" width="350"><tr><td nowrap="nowrap">
<p>Site</p>
</td>
<td nowrap="nowrap">
<p>Würzburg, Germany</p>
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<p>Collector type</p>
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<td nowrap="nowrap">
<p>Flat plate collector optimised for higher temperatures</p>
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<p>Aperture area</p>
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<td nowrap="nowrap">
<p>3,000 m²</p>
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</tr><tr><td nowrap="nowrap">
<p>Collector field orientation / angle</p>
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<td nowrap="nowrap">
<p>South / 45°</p>
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</tr><tr><td nowrap="nowrap">
<p>Operation temperature in district heating network</p>
</td>
<td nowrap="nowrap">
<p>70 °C supply, 39/40 °C return (winter/summer)</p>
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</tr><tr><td nowrap="nowrap">
<p>Economic life of collector field</p>
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<td nowrap="nowrap">
<p>25 years</p>
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</tr><tr><td nowrap="nowrap">
<p>Economic life of buffer tank</p>
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<td nowrap="nowrap">
<p>40 years</p>
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</tr><tr><td nowrap="nowrap">
<p>Total heating demand of district heating network</p>
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<td nowrap="nowrap">
<p>15,000 MWh/a</p>
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</tr></table></div>
<div><strong>Solites assessment of the online calculations performed for the chart above</strong></div>
<div>Source: Solites</div>
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<div>Surprisingly, the solar district heating prices calculated by Danish consultancy Planenergi are even lower than the Solites estimate of 56 EUR/MWh. Planenergi calculates a solar heat price of 46 EUR/MWh for a system of the same size (3,000 m² and 600 m³). The difference can be found in the specific net costs of the system, including the collector field, buffer tank, hydraulic piping, building, planning and location: 350 EUR/m² at Planenergi and 410 EUR/m² at Solites. </div>
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<div>“Our costs are based on long-term experiences with existing fields,” Niels From from Planenergi, confirms. “We use a cost curve which is based on the size of the collector field, starting at 430 EUR/m² for a 1,000 m² field including a buffer tank and down to 230 EUR/m² if the field has a collector area of 10,000 m² also including a buffer tank.” The following table shows the differences between the results from Planenergi and Solites.<br /> </div>
<div><br /><br /><table border="1" cellpadding="0" cellspacing="0" width="470"><tr><td>
<p> </p>
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<p><strong>Planenergi</strong></p>
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<p><strong>Solites</strong></p>
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<p><strong>Variation</strong></p>
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<p>Specific solar system costs, including tank price<br />(25 years, 3 % interest, no subsidy)</p>
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<p>350 EUR/m²</p>
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<p>410 EUR/m²</p>
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<p>+17 %</p>
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<p>Specific, annual used solar heat</p>
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<td>
<p>0.45 MWh/m²</p>
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<p>0.47 MWh/m²</p>
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<p>+4 %</p>
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<p>Resulting solar heat price</p>
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<p>46 EUR/MWh</p>
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<td>
<p>56 EUR/MWh</p>
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<p>+22 %</p>
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<p>Specific O&amp;M costs</p>
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<td>
<p>0.5 EUR/MWh</p>
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<td>
<p>6 EUR/MWh</p>
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<td>
<p>+1,100 %</p>
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<p>Pump electricity costs</p>
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<td>
<p>0.5 EUR/MWh</p>
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<td>
<p>0.75 EUR/MWh</p>
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<td>
<p>+50 %</p>
</td>
</tr></table></div>
<div><strong>Different calculation results for a solar district heating plant with 3,000 m<sup>2</sup> of collector area and a 600 m<sup>3</sup> storage tank. The term “used solar heat” describes the solar energy fed into the district heating network after tank storage, which includes storage losses, but excludes losses across the district heating network. </strong></div>
<div>Source: Planenert/Solites</div>
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<div>The table above illustrates the differences between the results from the two engineering companies Solites and Planenergi. The biggest relative difference can be found in the Operation &amp; Maintenance (O&amp;M) costs, excluding electricity costs for the pumps. Niels From confirms that the low rate of 0.5 EUR/MWh is based on experiences with existing fields. Solites, on the other hand, refers to the German VDI 2067 standard. “The VDI considers 1.5 % of the first years investment costs to be O&amp;M costs, which in this case adds up to 9 EUR/MWh, even without electricity,” Thomas Schmidt from Solites explains. “In our online tool, we have already revised this figure down to 6 EUR/MWh but we did not want to move too far away from VDI regulations.” </div>
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<div>More information:</div>
<div>Planenergi: <a href="http://www.planenergi.dk">www.planenergi.dk</a></div>
<div>Solites: <a href="http://www.solites.de">www.solites.de</a></div>
<div>Online calculator: <a href="http://www.sdh-online.solites.de">www.sdh-online.solites.de</a></div>
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</div></div></div><div class="field field-name-field-news field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74751" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">News</a></div></div></div><div class="field field-name-field-market-sectors field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74641" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">District Heating</a></div></div></div><div class="field field-name-field-six-pillars field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74851" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Finance and Incentives</a></div></div></div><div class="field field-name-field-country field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/43941" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Germany</a></div><div class="field-item odd"><a href="/taxonomy/term/44131" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Denmark</a></div></div></div><div class="field field-name-field-keyword field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/keyword/heat-prices" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">heat prices</a></div><div class="field-item odd"><a href="/taxonomy/term/56181" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">cost calculation</a></div><div class="field-item even"><a href="/keyword/de-risking" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">de-risking</a></div></div></div><div class="field field-name-field-companies field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/21371" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Solites</a></div><div class="field-item odd"><a href="/taxonomy/term/28151" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Arcon Solvarme</a></div><div class="field-item even"><a href="/taxonomy/term/21341" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Planenergi</a></div></div></div><span class="a2a_kit a2a_kit_size_32 a2a_target addtoany_list" id="da2a_2">
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Mon, 24 Mar 2014 07:00:00 +0000Baerbel Epp62656 at https://www.solarthermalworld.orghttps://www.solarthermalworld.org/content/germanydenmark-solar-district-heating-prices-between-37-and-88-eurmwh#commentsSMEThermal 2014: “Take the risk away from the customer and the financier”https://www.solarthermalworld.org/content/smethermal-2014-take-risk-away-customer-and-financier
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><div>
<img alt="SMEThermal 2014" class="Image img__fid__9826 img__view_mode__default attr__format__default attr__field_file_image_alt_text[und][0][value]__SMEThermal 2014 attr__field_file_image_title_text[und][0][value]__SMEThermal" src="http://solarthermalworld.org/sites/gstec/files/dsc01968.jpg" title="SMEThermal 2014" typeof="Image" /><strong>Solar thermal is not just about technology, it´s also about financing. It takes much more than just an improved, mature technology to have a successful industry. It needs new business models which attract the financial sector and it requires transparency in terms of performance and costs when dealing with commercial clients. These were the major topics of a roundtable discussion at SMEThermal 2014 in Berlin, Germany, on 18 February 2014. Solar thermal specialists from three different continents – Europe, Asia and North America – presented their case studies at the conference (from left): Søren Elisiussen, CEO of Arcon Solar (Denmark), Nicholas Atkins, Managing Partner of Georgieff Capital Advisors (United Kingdom), Thippegowda Srinath, Technical Director at Emmvee Solar Systems (India), Justin Schafer, Product Manager at Skyline Innovations (USA) and Robin Welling, Managing Director of Tisun (Austria). The roundtable discussion was chaired by Bärbel Epp, Managing Director of solrico (Germany). </strong></div>
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Photos: Stephanie Banse</div>
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</div>
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<img alt="Trenkner" class="Image img__fid__9831 img__view_mode__default attr__format__default attr__field_file_image_alt_text[und][0][value]__Trenkner attr__field_file_image_title_text[und][0][value]__Trenkner" src="http://solarthermalworld.org/sites/gstec/files/uwe_trenkner.jpg" title="Trenkner" typeof="Image" /><strong>Belgium: “We should be a lot more transparent about performance and costs”</strong></div>
<div>
<br />
Keynote speaker Uwe Trenkner awakened the audience: “We should be a lot more transparent about the performance we are achieving and about the costs of solar heat we are delivering – especially with commercial clients.” The consultant based in Brussels criticised that “if we are to quantify the number of kilowatt hours produced, we would have a problem. We attach so many footnotes about when these figures apply, how this should work and what could go wrong with it, so that the numbers become irrelevant.” Potential clients might just shake their heads in disbelief and buy a heat pump instead.</div>
<div>
</div>
<div>
<strong>USA: “We want to make use of solar thermal as easy for small enterprises as possible”</strong></div>
<div>
Justin Schafer, Product Manager at Skyline Innovations provoked the audience in the same way by starting his statement with: “Nobody cares about you, nobody at all! People are not aware of solar thermal, they do not see the benefits and they do not see why it is relevant to them.” Afterwards, the product manager emphasised that “we want to make the use of solar thermal as easy for small enterprises as possible” and explained Skyline’s business model, which combines the services of an Energy Service Company (ESCO) with a price-indexed heat supply. “To make this as appealing as possible, we do not only pay for the entire investment, but we also want to shift all the risk from the consumer to ourselves, that means that we charge our clients for any solar unit between 25 and 50% less than what they have to pay to the utility for the conventional energy they purchase.” That this business model is successful shows the rapid growth of Skyline Innovations, which has already completed 104 ESCO projects since the foundation of the company in 2010. According to Schafer, 96 systems were in the design/build phase and another 41 had been commissioned (for more information, see the <a href="http://solarthermalworld.org/content/we-try-take-complication-out-energy-business-not-only-our-customers-also-our-industry">interview with Justin Schafer</a>). </div>
<div>
</div>
<div>
When having been asked whether Skyline’s business model is exportable, Schafer pointed out that “it can work in additional markets, especially with high energy prices, but then the key issue is to bring down equipment and installation costs.” </div>
<div>
</div>
<div>
“I can imagine that the ESCO model works for very large installations in Europe,” Robin Welling, CEO of Tisun, added. “However, as a solar system manufacturer, I should not mix up business models. ESCO services are associated with a completely different rhythm and need very different staff qualifications.” </div>
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</div>
<div>
<strong>Denmark: “It is absolutely crucial to drive down costs”</strong></div>
<div>
Elisiussen agreed that ESCO models “sound logical and might be a way forward for large installations,” but right now, the CEO of Danish company Arcon doesn’t see the demand for ESCO services at home. His company has delivered some of the largest solar district heating systems in Europe over the last years, which are all owned and operated by municipalities. “These municipalities have access to very attractive funding with low-interest loans of 3% over 20 to 25 years, so no need for ESCO services.” Because of the high competition, it had been absolutely crucial for Arcon to drive down costs. “We have improved the cost/performance ratio over the last 5 years by around 50%,” the CEO said (for more information on his business models, see the <a href="http://solarthermalworld.org/content/denmark-we-have-improved-costperformance-ratio-around-50-over-last-5-years">case study</a>).</div>
<div>
What about exporting the Danish business model to other countries with large district heating plants? “Absolutely possible,” Welling confirmed. “If it works in Denmark, it would probably work in Hungary and Ukraine as well. And there are actually very technical platforms in these countries.”</div>
<div>
</div>
<div>
<strong>India: Solar heat costs half the price of hot water produced by electricity </strong></div>
<div>
“For the moment, ESCOs are no model for us, as we have a problem with the metering,” Srinath Thippegowda said. The Technical Director at Emmvee Solar Systems confirmed that short-term payback times were the key argument for most investment decisions in India, even though some companies and institutions were open to much deeper financial analyses. “This shows a positive trend,” Srinath said and recalled a recent case. “Originally, the Symbiosis Institute of Business Management in the city of Hyderabad wanted to install electric heaters for the hot water needs of the student hostel,” Srinath explained. “However, after a rough calculation and a couple of visits, they were convinced, because they understood that solar will save them a lot of money.” With 3.2 INR/kWh<sub>th</sub> (39 EUR/MW), the price for solar heat over 10 years is less than half the price of hot water produced by electricity with 6.7 INR/kWh<sub>th</sub> (82 EUR/MWh) (see the respective news piece for more information about this <a href="http://solarthermalworld.org/content/india-college-hostel-enjoys-very-competitive-solar-heat-prices">case study</a>). So, solar thermal is a very cost-effective solution in a country with fairly high energy prices – in India as well as in many other countries worldwide. It is a good message which should be spread among potential clients elsewhere. </div>
<div>
</div>
<div>
“Make solar thermal an easy and adaptable technology for our customers. It is on us, the leaders in a small industry, to take the risks away from the customer and the financier. Take the risk on us, the experts, because we understand what we are doing,” was the final takeaway by Justin Schafer for the European audience.</div>
<div>
</div>
<div>
More information:</div>
<div>
<a href="http://www.emmveesolar.com/">www.emmveesolar.com/</a></div>
<div>
<a href="http://www.arcon.dk">www.arcon.dk</a></div>
<div>
<a href="http://www.georgieffcapital.com/">www.georgieffcapital.com/</a></div>
<div>
<a href="http://www.tisun.com">www.tisun.com</a></div>
<div>
<a href="http://www.skylineinnovations.com">www.skylineinnovations.com</a></div>
<div>
</div>
</div></div></div><div class="field field-name-field-news field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74751" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">News</a></div></div></div><div class="field field-name-field-six-pillars field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74851" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Finance and Incentives</a></div></div></div><div class="field field-name-field-country field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/45581" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">India</a></div><div class="field-item odd"><a href="/taxonomy/term/43931" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Belgium</a></div><div class="field-item even"><a href="/taxonomy/term/43941" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Germany</a></div><div class="field-item odd"><a href="/taxonomy/term/44131" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Denmark</a></div><div class="field-item even"><a href="/taxonomy/term/45931" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">USA</a></div><div class="field-item odd"><a href="/taxonomy/term/44081" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Austria</a></div><div class="field-item even"><a href="/taxonomy/term/43961" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">UK</a></div></div></div><div class="field field-name-field-keyword field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/keyword/smethermal-2014" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">SMEThermal 2014</a></div><div class="field-item odd"><a href="/taxonomy/term/68011" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">business model</a></div><div class="field-item even"><a href="/keyword/esco" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">ESCO</a></div><div class="field-item odd"><a href="/taxonomy/term/48701" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">large scale solar thermal systems</a></div></div></div><div class="field field-name-field-companies field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/21381" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Tisun</a></div><div class="field-item odd"><a href="/taxonomy/term/29081" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Emmvee Solar</a></div><div class="field-item even"><a href="/companies/skyline-innovations" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Skyline Innovations</a></div><div class="field-item odd"><a href="/taxonomy/term/40141" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">trenkner consulting</a></div><div class="field-item even"><a href="/taxonomy/term/28151" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Arcon Solvarme</a></div><div class="field-item odd"><a href="/companies/georgieff-capital-advisors" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Georgieff Capital Advisors</a></div></div></div><span class="a2a_kit a2a_kit_size_32 a2a_target addtoany_list" id="da2a_3">
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Tue, 04 Mar 2014 15:00:00 +0000Baerbel Epp62521 at https://www.solarthermalworld.orghttps://www.solarthermalworld.org/content/smethermal-2014-take-risk-away-customer-and-financier#commentsDenmark: “We have improved the cost/performance ratio by around 50 % over the last 5 years”https://www.solarthermalworld.org/content/denmark-we-have-improved-costperformance-ratio-around-50-over-last-5-years
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><div><img alt="Elisiussen" class="Image img__fid__9856 img__view_mode__default attr__format__default attr__field_file_image_alt_text[und][0][value]__Elisiussen attr__field_file_image_title_text[und][0][value]__Elisiussen" src="http://solarthermalworld.org/sites/gstec/files/soeren1_klein.jpg" title="Elisiussen" typeof="Image" /><strong>Strong competition and best cost/performance ratios have made the Danish district heating market one of the most successful case studies within the European solar thermal market. The two key features of the Danish model are the cost-optimised large solar fields above 10,000 m² with prices as low as 200 EUR/m², including installation, and the low interest rates for the investment with only 3 % over the expected lifetime of the system of at least 20 years. The resulting heat price is as low as 31 EUR/MWh, beating by far the heat price of a gas-fired district heating plant. Søren Elisiussen, CEO of Arcon, a Danish collector manufacturer and large-scale turnkey solar systems provider, explained his business case during the panel discussion New Business Models for the Solar Thermal Industry at the international conference SMEThermal 2014 in Berlin, Germany, on 18 February 2014.</strong></div>
<div>Photo: Stephanie Banse</div>
<div> </div>
<div>“To us, it is absolutely crucial to continuously optimise the cost/performance ratio. A large number of our projects in Denmark are put out to tender because of the high amount of money involved,” Elisiussen explained. ”So, we tender for the projects, and the company offering the best feasibility wins the projects.” According to the CEO, Arcon had managed to drive down costs and to improve the cost/performance ratio by around 50 % over the last 5 years. This was made possible by optimising production and choosing the very best materials. “We want to produce the best collector quality with an expected lifetime of at least 25 years,” Elisiussen emphasised. Arcon can look back at 40 years in the solar thermal business and the company has installations which are already 25 years old and are still running. “We actually engaged an institute to open some of the 20-year-old collectors and estimate the remaining lifetime. Based on the erosion inside the collector pipes, the answer was ‘at least 30 years lifetime’, because there was actually no measurable wear to be noted within the copper tubes,” Elisiussen explained during the panel discussion.</div>
<div> </div>
<div>Regarding installation, it is also Arcon’s goal to set up large collector fields in the shortest time possible. The CEO mentioned a current project with a 12,000 m² field in Grenaa, Denmark, which was installed in less than four weeks - including the foundation for the support system and the flexible piping between collectors. This means that, on average, 500 m² of collector area were set up per day.<br /> </div>
<div><br /><br /><table border="1" cellpadding="0" cellspacing="0"><tr><td>
<p>Specific investment costs of the ground-mounted 10,000 m² collector field</p>
</td>
<td>
<p>200 EUR/m²</p>
</td>
</tr><tr><td>
<p>Specific solar yield (80°C forward, 40°C return)</p>
</td>
<td>
<p>450-500 kWh/m²</p>
</td>
</tr><tr><td>
<p>First-year capital costs when financed by a 20-year annuity loan with an interest rate of 3% p. a.</p>
</td>
<td>
<p>13.5 EUR/m²</p>
</td>
</tr><tr><td>
<p>Resulting heat price</p>
</td>
<td>
<p>31 MWh (including<br />1 EUR/MWh for O&amp;M)</p>
</td>
</tr></table></div>
<div><strong>The table shows the key figures of a typical Danish district heating project with an average collector field size of 10,000 m² and an existing storage tank. </strong></div>
<div>Source: PlanEnergi / Arcon, Denmark</div>
<div> </div>
<div>The resulting heat price at 31 MWh is very competitive compared to district heating networks based on fossil fuels (see the table above). “To run these fields successfully over a long period, you have to understand the complexity of the system,” Elisiussen replied to the question of whether this business model was exportable to places such as Eastern Europe, where huge district heating networks are available. “It is very important to distribute and control the water in the correct way in these huge fields to absolutely avoid spot building or stagnation somewhere in the field,” the CEO added during the panel discussion. The second crucial point was the integration of the field into the district heating plant. Every district heating plant was different, and it was very much influenced by the operator. “I came from the turbine industry where there is no human intervention when feeding into the grid, but operators of district heating networks can adjust operating conditions, for example, start combined heat and power plants if the electricity price is high. The heat will then flow into the network and therefore change the operating conditions for collectors feeding into the same network.”</div>
<div> </div>
<div>Elisiussen emphasised that the complexity of the district heating plants had to be understood to ensure an optimal and trouble-free operation of the collector field. Arcon’s rule of thumb was that the solar share in district heating plants with traditional storage solutions should be no more than 25 %. Seasonal storage made it possible to increase the solar share to above 50 %.</div>
<div> </div>
<div>More information:</div>
<div><a href="http://www.arcon.dk">www.arcon.dk</a></div>
<div><a href="http://www.planenergi.dk/">www.planenergi.dk/</a></div>
<div> </div>
</div></div></div><div class="field field-name-field-news field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74751" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">News</a></div></div></div><div class="field field-name-field-market-sectors field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74641" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">District Heating</a></div></div></div><div class="field field-name-field-six-pillars field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74851" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Finance and Incentives</a></div></div></div><div class="field field-name-field-country field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/44131" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Denmark</a></div></div></div><div class="field field-name-field-keyword field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/keyword/smethermal-2014" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">SMEThermal 2014</a></div></div></div><div class="field field-name-field-companies field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/28151" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Arcon Solvarme</a></div></div></div><span class="a2a_kit a2a_kit_size_32 a2a_target addtoany_list" id="da2a_4">
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Tue, 04 Mar 2014 09:07:44 +0000Baerbel Epp62536 at https://www.solarthermalworld.orghttps://www.solarthermalworld.org/content/denmark-we-have-improved-costperformance-ratio-around-50-over-last-5-years#commentsDenmark: Construction Start on Dronninglund’s Solar District Heating Planthttps://www.solarthermalworld.org/content/denmark-construction-start-dronninglunds-solar-district-heating-plant
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even" property="content:encoded"><p><strong><img alt="" class="Image img__fid__6626 img__view_mode__media_large attr__format__media_large" src="http://solarthermalworld.org/sites/gstec/files/styles/large/public/dronninglund.jpg?itok=28I-TC6p" typeof="Image" />On 15 March, the excavators began their work for Denmark’s largest solar district heating project so far. The collector field in the town of Dronninglund, about 30 km northeast of Aalborg, will have an area of 35,000 m², but installing the collectors will only be the last step. First, there is the seasonal pit heat storage - a hole in the ground filled with 60,000 m³ of water. In combination with the seasonal heat storage, the solar plant is said to achieve a yield of 15,000 MWh per year and to provide 40 % of the heat for the local district heating network with its 1,350 customers. In the long run, the collectively owned district heating company Dronninglund Fjernvarme plans to provide all of its heat through renewable energies to keep heat prices stable, albeit there have not yet been any details on how to accomplish this task. Currently, the heating network’s supply is based on four combined gas-based heating plants (7 MW<sub>el</sub> and 12 MW<sub>th</sub> total) and two biofuel boilers (15.1 MW total).</strong><br />
Photo: ARCON Solar</p>
<p>The network pipes will require an average temperature of 75 °C per year. With enough sunlight, the solar plant will reach the temperature needed to feed heat directly to the network. In winter, when the temperature cannot be reached, the solar plant will feed low-temperature heat to the seasonal storage. The storage will be combined with an absorption chiller (2 MW of cooling capacity), which will work as a heat pump to allow the network to use the low-temperature heat. Therefore, the network’s temperature can get as low as 15 °C, making even solar heat at 30 to 40 °C a valuable resource in wintertime, usually between November and February. “We will set up an absorption chiller fuelled with bio-oil instead of an electrical heat pump. The Danish tax system has made this the more attractive option,” says Per Alex Sørensen of Danish engineering company PlanEnergi, the company which has developed and planned the project from the beginning. In summer, the storage can be heated up to 90 °C, so that the solar collectors will be able to absorb heat of up to 95 °C on a sunny day.</p>
<p>The storage design is very simple. It is basically a hole in the ground. A plastic foil avoids that the water drains away. The storage is insulated only on the cover, reducing costs to a mere 35 EUR/m³, including in- and outlet pipes.</p>
<p>Construction of the solar field is scheduled for the last quarter of this year. The provider and installer of the 2,800 collectors is Danish company ARCON Solar, a subsidiary of Danish group SolarCAP and specialised in large-scale turnkey solar thermal solutions. As in other large-scale installations, the collectors will have an absorber area of 12.5 m². The entire collector will have one large harp type absorber consisting of 18 fins, laser-welded to the absorber tubes. An insulating transparent foil will reduce convection losses and, according to ARCON, will result in the highest performing flat plate collector on the market. “The ARCON HT panel has roots dating back to the beginning of the 1980s, when the first version was developed in Sweden. The design has since been optimised for large-scale solar plants. Today, ARCON produces 15 different types of HT Panels in its factory in Skørping, Denmark,” says Søren Elisiussen, General Manager of ARCON.</p>
<p>According to PlanEnergi, the cost for the solar collectors - including internal piping and the foundation – will be approximately 155 EUR/m². The total investment for the project will be EUR 14.5 million, leading to a heat production price of around 58 EUR/MWh. The EUR 2.1 million subsidy by the Danish national Energy Technology Development and Demonstration Programme, EUDP, will reduce the effective heat price to about 50 EUR/MWh.</p>
<p>The solar collector area providing heat for district heating networks in Denmark currently amounts to a countrywide 280,000 m². The aim over the next years will be to add another 416,000 m², of which more than 300,000 m² are planned to be installed in 2013, according to the statistics of the Danish district heating association.</p>
<p>More information:<br /><a href="http://www.dronninglundfjernvarme.dk">www.dronninglundfjernvarme.dk</a><br /><a href="http://www.arcon.dk">www.arcon.dk</a><br /><a href="http://www.planenergi.dk">www.planenergi.dk</a><br /><a href="http://www.fjernvarmen.dk">www.fjernvarmen.dk</a></p>
<p><strong>This text was written by Eva Augsten, a German freelance journalist specialised in renewable energies (Augsten(@)solrico.com).</strong></p>
</div></div></div><div class="field field-name-field-news field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74751" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">News</a></div></div></div><div class="field field-name-field-market-sectors field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/74641" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">District Heating</a></div></div></div><div class="field field-name-field-country field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/44131" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Denmark</a></div><div class="field-item odd"><a href="/taxonomy/term/43991" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Sweden</a></div></div></div><div class="field field-name-field-keyword field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/keyword/dronninglund" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Dronninglund</a></div><div class="field-item odd"><a href="/keyword/danish-national-energy-technology-development-and-demonstration-programme" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Danish national Energy Technology Development and Demonstration Programme</a></div><div class="field-item even"><a href="/keyword/eudp" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">EUDP</a></div></div></div><div class="field field-name-field-companies field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/28151" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Arcon Solvarme</a></div><div class="field-item odd"><a href="/taxonomy/term/21341" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Planenergi</a></div><div class="field-item even"><a href="/taxonomy/term/28171" typeof="skos:Concept" property="rdfs:label skos:prefLabel" datatype="">Solarcap</a></div></div></div><span class="a2a_kit a2a_kit_size_32 a2a_target addtoany_list" id="da2a_5">
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Wed, 10 Apr 2013 07:27:23 +0000Baerbel Epp60131 at https://www.solarthermalworld.orghttps://www.solarthermalworld.org/content/denmark-construction-start-dronninglunds-solar-district-heating-plant#comments